Concentrator.



No. 669,038. Patented Feb. 26, MIDI.

'S. W. TRAY-LOB.

GONCENTBATOB. Application filed June 2, 1900.1

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(No Model.)

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No. 669,038. Patented Feb. 26, IBM.

8. W. TRAYLDR.

CONCENTRATOR. (A plication filed Ju ne 2 19qo.. (No Model.) 3Sheets-Sheet 2,

WITNESSES: INVENTOR.

mu'wm N0. 669,038. Patented Feb, 26, [90L S. W. TRAYLOR.

CONCENTRATOR,

(Application meii June 2, 1900.

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iIwiTn STATES PATENT OFFICE.

SAHUEL W. TBAYLOR, OF DENVER, COLORADO.

CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 669,038, dated February26, 1901. Application filed June 2,1900. berial No. 18,912. (No model.)

To rtZZ whom it may concern:

Be it known that I, SAMUEL W. TRAYLOR, a citizen of the United States ofAmerica, residing at Denver, in the county of Arapahoe and State ofColorado, have invented certain new and useful Improvements inConcentrators; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing bad to the accompanying drawings, and to the figures of referencemarked thereon, which form a part of this specification.

My invention relates to improvements in concentrators, my object beingto provide an apparatus of this class capable of simultaneously savingboth fine and coarse mineral. Ordinarily concentrating-machines arecapable of advantageously saving but one class of mineral-that is tosay, either the coarse or fine values; butso far as I am aware nomachine heretofore produced has been capable of performing both of thesefunctions at the same time. Under ordinary conditions the tendency ofthe line mineral is to pack underneath, while the coarse values remainon top and are discharged with the gangue. I overcome this difdculty bycombining a jigging apparatus with a concentrating-table, whereby themineral, both fine and coarse, caught by the riffles of the table passesto the screen of the jig, where the fine values, located underneath, arecontinuously removed by the action of the water from below and carrieddownwardly with the water and saved, while the coarse mineral on toppasses off from the screen over the discharge extremity of the table andis also saved. By virtue of this construction it becomes practicable tomaintain a suitable depth of mineral upon the table and the screen ofthe jig.

My improved concentrator will now be described in detail, referencebeing made to the accompanying drawings, in which is illustrated anembodiment thereof.

In the drawings, Figure 1 is a side elevation of my improved machine.Fig. 2 is a top or plan view of the same. Figs. 3 and 4 are rear andfront end elevations, respectively. Fig.

5 is a section taken on the line C D, Figs. 1

Fig. 6 is a vertical longitudinal secand 2.

tion taken through the concentrating-table, the parts being shown on alarger scale, the operating mechanism being broken away.

Similar reference characters indicate the same parts in all the views.

Let the numeral 5 designate a suitable stationary framework upon whichthe operating parts of the machine are mounted. The table 6 is supportedupon legs 7, whose extremities engage bearings 8 and 9, respectively,attached to the table and crossbeams 5 of the frame. The bearings 8 and9 are so constructed as to permit the table to reciprocatelongitudinally in the performance of its function. During the movementof the table the legs oscillate. The reciprocation movement of the tablemay be imparted by any suitable mechanism. As shown in the drawings, adraw bar 10 passes through an opening formed in a depending lug 12,secured to the frontendorheadorthetable. Buffer-springs 13 and 14surround the draw-bar and are located on opposite sides of the lug 12.The draw-bar passes through an upright projection 15, mounted on theframe. Its forward extremity is pivotally connected with a pitman 16,connected with an eccentric 17 of an operating-shaft 18, provided withthe usual pulleys 19. An upright pitman 20is connected with an eccentric21 of the shaft 18 at one extremity and with one end of a walking-beamor lever 22 at the opposite extremity. This walking-beam is fulcrumed ona bracket 23, as shown at 24, while its opposite extremity is pivotallyconnected at 25 with a rod whose lower extremity is connected with aplunger 27, located in a reservoir 28, which is supplied with water byway of an inlet-pipe 29. From the bottom of the reservoir or tank 28 aconduit 30 leads to a water-chamber 31, supported on the bottom of thetable near its rear extremity. Mounted on the table above thiswater-chamber is a screen 32, supported from below by a checkeredframework constructed to allow the Water to pass up through the screenfreely from the water-chamber under the influence of the plunger 27inthe reservoir 28. The screen is held down or secured in place from aboveby strips 32, secured to the portion of the table between thescreen-covered openings. This screen is located on a level with the facethe head of the table.

or top surface of the table, which is provided with anupwardly-projecting ledge 33 in the rear of the screen, adapted tomaintain a bed of material on the screen of suitable depth. The normallevel of the Water in the reservoir 28 is in the same plane, orapproximately the same plane, as the screen, so that as impulses areimparted to the water in the reservoir by the reciprocation of theplunger 27 these impulses are transmitted to the water in the chamber31, causing the water therein to rise and fall successively. During thiswave motion the water passes back and forth vertically through themeshes of the screen, whereby the line concentrates or mineral valueswhich have accumulated on the screen are removed and pass into thewater-chamber. In this manner these fine mineral values are preventedfrom packing on the screen.

The table is provided with longitudinal riffies 6 which extend from thehead thereof to the screen 31. These riffles preferably diminishslightly in height from the head of the table, where they are highest,to the screen, where they are of minimum height. The ledge 33 is of thesame height, or approximately the same height, as the riflies, wherebythe bed of material onthe screen is substantially of the same depth asthat on the body of the table.

The wash-Water is supplied to the table from a trough 34, havingperforations 34 from which the water escapes to the table. The trough 34receives its supply from an inlet-pipe 35. This trough extendslongitudinally along wha may be termed the upper edge or side of thetable, since the table is supposed to be laterally inclined downwardlyfrom the wash-water trough, though in the drawings it is shown asoccupying a horizontal position. The degree of the tables inclinationmay be regulated in any suitable manner. As shown in the drawings, thelateral inclination of the table is regulated by means of wedge-shapedblocks 35*, which rest upon suitable stationary supports 36, secured tothe framework of the machine. The upper inclined faces of these blocksengage cooperating faces formed on the extremities of the transversebeams 5, whereby as the blocks 35 are actuated the corresponding edge orside of the table may be raised and lowered at will. The two blocks 35are connected by a rod 37. The forward block 35 is connected with acontrolling-lever 38 by a rod 39. The lower extremity of this lever isfulcrumed on the frame, as shown at 40. The lever carries a dog 41,which engages a ratchet-bar 42, mounted on the frame. The blocks 35 areactuated through theinstrumentality of this lever.

The material to be treated is first discharged in the form of pulp intoa box 43, supported above the right-hand corner or portion of (See Fig.5.) This pulp-box is perforated on one side, as shown at 43 to allow thepulp to escape to the riffied surface of the table. As shown in thedrawings, (see Figs. 3 and 5,) the pulp-box is tilted toward thewash-water trough to facilitate the escape of the pulp. The lower edgeof the table, or that remote from the trough 34, is provided with adownwardlyinclined flange 44, forming a splash board over which thegangue is discharged. The rear exiremity of the table is provided with adischarge-apron 45, over which the concentrates are discharged.

When the machine is in operation, the rotation of the shaft 13 imparts alongitudinally-reciprocating movement to the table through theinstrumentality of the draw-bar 10, the pitman 16, and the eccentric 17.The operating mechanism is so arranged that this movement has a tendencyto carry the material on the table rearwardly toward the screen 31, thewash-water from the trough 34 in the meantime carrying the ganguedownwardly in a transverse direction and discharging it over thesplash-board 44. The material containing the values, both coarse andline, is caught by the riffles, the fine portion naturally assuming thelowestposition. This material after it leaves the riffles passes to thescreen 31, forming a bed thereon equal to the height of the riffles. Therotation of the shaft 18 also imparts a reciprocating movement to theplunger 27 in the reservoir 28 through the instrumentality of the pitman20, the walking-beam 22, and the rod 26. The reservoir 28 is suppliedwith water from any suitable source through the agency of the pipe 29.The plunger fits loosely in the reservoir, so that the water passesfreely around its periphery to a position below. The function of theplunger is toimpart regularly-timed impulses to the water in the chamber31, whereby the water is made to rise and fall alternately through themeshes of the screen 32, whereby the material is prevented from packingon the screen and the line concentrates forming the lower stratum of thebed next to the screen carried downwardly into the water-chamber 31,fromwhich they may be drawn at intervals or continuously through a spout 31,connected with the rear extremity of the Water-chamber, which isnormally closed against the escape of water except at the top,where itpasses out through the screen,as heretofore explained. The final removalof the gangue from the top of the bed of material on the screen iseffected by the wash-water from the trough 34, this remnant of thegangue being also discharged over the splash board 44, while the coarseconcentrates are carried over the ledge 33 to the discharge-apron 45. p

The discharge extremity of the conduit 30 is connected with thewater-chamber 31 at a point forward of the screen, whereby there is notendency on the part of the concentrates to enter and clog the conduit.Moreover, the

tendency of the tables movement is to carry the concentrates rearwardlyin the water- The forward extremity 30 of the chamber.

conduit 30 is flexible to permit the necessary movement of the table.

Having thus described my invention, What I claim is 1. The combinationof a vibratory concentrating-table provided with an openingin its rearportion, a screen covering said opening, a watenchamber attached to thetable below the screen, and means independent of the table forimpartingimpulses to the water in said chamber whereby it is adapted to passupward and downward alternately through said screen.

2. In a concentrator, the combination of a vibrating table, awater-chamber mounted on the table, a screen attached to the table abovethe water-chamber and arranged to receive the material from theconcentrating-surface of the table, and means independent of the tablefor imparting pulsations to the water in the said chamber whereby thewater is made to pass up and down alternately through the screen.

3. The combination of a rifiled concentrating-table, means for impartinga vibratory movement thereto whereby the material is made totraveltoward the tail of the table, a screen attached to the tail of the tableat the extremities of the rifiles, and covering an opening in the table,a water-chamber attached to the table below said screen and opening, andmeans independent of the table for imparting pulsations to the Water inthe chamber, whereby it is made to pass up and down alternately throughthe screen.

4. A concentrating apparatus comprising a Vibrating ritfled table havingan open screencovered portion located at the rear extremities of theriflies, a water-chamber mounted on the table below the screen, awater-containing reservoir mounted independently of the table, a conduitconnecting the reservoir with the said water-chamber, and areciprocating plunger in the reservoir for imparting a wave motion tothe water in the chamber, the construction and arrangement of theconduit leading from the reservoir to the waterchamber being such as topermit the movement of the chamber with the table while the reservoirremains stationary.

5. A concentrating apparatus comprising a vibratory riffled table havingan open screencovered portion located at the rear extremities of theriftles, a water-chamber mounted on the table below the screen, awater-containing reservoir mounted independently of the table, a conduitconnecting the reservoir with the said water-chamber, a reciprocatingplungerin the reservoir for impartingawave motion to the water in thechamber, an operatingshaft, and a suitable connection between said shaftand the table and between the shaft and the plunger, whereby as theshaft is rotated the table and plunger are simultaneously actuated.

6. The combination of a vibratory concentrating-table having an openingin its rear extremity, a screen covering said opening and adapted toreceive the concentrates from the concentratirig-surface of the table, achamber mounted on the table below the screen-opening, a stationaryreservoir suitably located with reference to the table, a conduitconnecting said reservoir with the chamber on the table, and arranged topermit the movement of the table, and a plunger located in the reservoirand adapted to impart regularly-timed impulses to the water in the chamber,whereby it is adapted to pass up and down through the screen.

7. The combination of a vibratory concentrating-table having an openingat its rear extremity, a screen covering said opening and adapted toreceive the concentrates from the concentrat-ing-surface of the table, achamber mounted on the table below the screen-opening, a stationaryreservoir suitably located with reference to the table, a conduitconnecting said reservoir with the chamber on the table, and arranged topermit the move ment of the table, a plunger located in the reservoir,and suitable means for simultaneously imparting the necessary movementtothe table and a reciprocating movement to the plunger, wherebypulsations are imparted to the water in the chamber causing it to passup and down through the screen.

8. A concentrating apparatus comprising a longitudinally-reciprocatingriflied table having an open screen-covered portion located at theextremities of the riffles, and suitable means independent of the tablefor passing water in impulses through the screen from below.

9. A concentrating apparatus comprising a longitudinally-reciprocatingta'ble having longitudinal riffles, an open screen-covered portionlocated at the extremities of the riffles and movable with the body ofthe table, a wator-chamber attached to the table below the screen, astationary reservoir located in suitable proximity to the table, aconnection between said reservoir and said water-chamber, permitting thechamber to move with the table, and a reciprocating plunger located inthe reservoir for imparting pulsations to the water in the chamber.

10. The combination of a table mounted to permit a vibratory movement,having a screencovered opening at its rear extremity, and a chamberbelow said opening and communicating therewith, a relatively stationarywater-containing reservoir, a conduit leading from said reservoir tosaid water-chamber and having a flexible portion, a plunger located inthe reservoir, and means for simultaneously operating the table andimparting a reciprocating movement to the plunger whereby pulsations areimparted to the water in the chamber.

11. The combination of a table mounted to permit a vibratory movementand having an opening in its rear portion, a screen covering tween theshaft and the plunger, whereby the IO said opening, a water-chambermounted on the table below the screen, a relatively stationarywater-containing reservoir located in suitable proximity to the table, aplunger in the reservoir, a conduit connecting the reservoir with thechamber and permitting the latter to move with the table, a shaft, aconnection between the table and the shaft and be rotation of the shaftoperates both. In testimony whereof I aflix my signature in presence oftwo witnesses.

SAMUEL W. TRAYLOR.

Witnesses:

GRACE MYTINGER, A. J. OBRIEN.

